Java

4 courts

**🚀 JavaScript Luzern Meetup** Hey everyone! We're planning for another evening of frontend goodness. 📋 What's on the agenda? **Coding the coder: how coding agents work - Hugo Sousa** You’ve probably already tried or are using on a daily basis a coding agent, such as Claude Code, Codex, OpenCode, Pi, etc. But perhaps you’re not aware of how they work. What is a coding agent? What does it take to build one? In this talk I’ll dig into the internals of coding agents and what it takes to build a minimal one. **The Browser Is Your Framework - Mateusz Halada** Let’s explore how modern web applications can be built directly on the platform using HTML, CSS, JavaScript, and browser APIs - without defaulting to heavy frameworks. Through a live demo, we’ll recreate common UI patterns and show what frameworks actually abstract under the hood. We’ll also demystify concepts like SPA, SSR, and CSR to understand where they truly come from. The goal isn’t to replace frameworks, but to give you the clarity to choose them intentionally—and know when you don’t need them. **Coding Atrophy: What Software Engineers Can Learn From Aviation - Maximilian Walterskirchen** Aviation spent 30 years figuring out that automated cockpits were atrophying pilot skills. The data on AI coding tools is starting to look uncomfortably similar. A talk on what aviation figured out, what the research shows, and the bug that made me realize my own skills had gone soft. 🎤 Call for Speakers! We still have open slots and would love to hear from you! If you've been working on something interesting — whether it's AI-related or any other JavaScript/CSS topic — reach out and share it with the community. Not sure what to talk about? We can help suggest a topic based on your interests. First-time speakers are absolutely welcome! Food and drinks are on us. A big thank you to [CSS](https://www.css.ch/) for providing the location! See you there! 🙌

Kommen Sie vorbei und lernen Sie care 4 kids kennen. Wir stellen uns vor, erzählen Ihnen über unseren Jobmöglichkeiten und beantworten alle Ihre Fragen. Wir sind im Starbucks an der Europaallee 7 (neben HB Zürich). Sie finden uns drinnen am Tisch . Auf dem Tisch sind care 4 kids Schablonen aufgestellt, damit Sie uns schneller sehen.:) Bitte bringen Sie Ihren vollständigen Lebenslauf mit und konsumieren Sie ein erfrischendes Getränk. Wir freuen uns auf Sie. *** Come and learn about care 4 kids and let us answer all your questions. Please find us at Starbucks Europaallee 7 (next to HB Zurich). We have care 4 kids sign set up so you can find us faster. :) Please bring us your CV and have a refreshing drink. We very much look forward to meeting you! ***

Welcome to the Winterthur Badminton Meetup! 🏸👊😉🍻 We’re an international group created for badminton fans in and around Winterthur. Open to Expats and Swiss folks who want to train and socialise with fellow ‘badmintonists’. Or perhaps you’d like to learn the sport and meet new people? Whether doing it for fun or fitness, the idea is to enjoy and have a great (kickass) midweek. And everyone is welcome to join us for a postgame drink or two! See yah! 😊 Important: We ask everyone to respect others who wish to play. That means dropping out if you won’t make it to the game by updating your RSVP. Keep in mind: RSVPs close at 21:00 two days before the event to give others enough time to plan. Anyone on the RSVP list who did not show up at the event is considered a "no-show". No-shows will still have to pay the shared cost of the court and shuttles. We keep track of no-shows and deprioritise them in future games. Please try your best to pay on the same day by Twint or in cash. With Twint, write in the comment the date and your name for reference. Cost will be around 12-20 CHF, depending on the amount of players joining and if we have to rent 1 or 2 courts. Note: If it's your first time joining, please send me a message for more details and to confirm your spot in the game. Otherwise, regular players will be given priority. Cheers, Elias

* **Shake it off at the Beginner K-POP Teens Dance Class at The Vibe!** This beginner-friendly class for **Teens** is perfect for teens who loves K-pop music but is new to dance. You’ll learn fun, iconic choreography from popular K-pop hits while improving your coordination, rhythm, and confidence. No previous dance experience is required — just bring your energy, a smile, and comfortable clothes you can move in. Each class is designed to be inclusive, encouraging, and full of positive vibes, so you can dance at your own pace while having a blast. Your teacher Ana ([@ana_gsevilla](https://www.instagram.com/ana_gsevilla)) will guide you through all the steps, help you feel the rhythm in your body, and hype you up from start to finish! *Don’t be fooled by the number of people on the event page — our weekly crew ranges from 10 to 20 amazing humans: first-timers, regulars, and a few silent fans who never mark “going” but always show up 😉* ### **Booking is mandatory!** To secure your spot, please book in advance via our website: [BOOK HERE](https://www.thevibedance.ch/schedule) ### \*Rates?\*💃 **Trial Class: CHF 15** **Single Class:** **CHF 29** **Trimester Package of 11 Classes: CHF 250** ### *When?* **WEDNESDAY** 17:30 – 18:30 \| Beginner Teens K\-POP Dance Class *Where?* **The Vibe Dance Studio** Hohlstrasse 488 8048 Zürich (Just 3 minutes from Altstetten Train Station and 15 min from HB) ### **More info:** 🌐 [thevibedance.ch](https://thevibedance.ch/) 📸 Instagram: [@ana_gsevilla](https://www.instagram.com/ana_gsevilla) [@thevibedance.ch](https://www.instagram.com/thevibedance.ch) Got questions? Dm us on [Instagram](@thevibedance.ch), text or call: 📞 +41 78 329 71 77 **See you on the dance floor – let’s dance together!** 💥🫶💃

**Come join us for the** **Advanced** **Street Dance Class** and discover Hip Hop, Commercial, Street Jazz, and more, learn useful moves, and get more confidence on a dance floor! Your teacher - **Nat ([@nat.so.fun](http://@nat.so.fun))** will guide you through all the steps, help you better understand the music, and groove with you to the best tracks. **Come and vibe with us!** Don't get discouraged by the number of people on the event page. **Our weekly crew ranges from 10 to 25 amazing humans**—regulars, first-timers, and those who skip the ‘going’ button but never miss a class 😉 [Check out what the class looks like here!](https://www.instagram.com/reel/DK14dCKq9Tv/?utm_source=ig_web_copy_link&igsh=MXNtemlvcGR1Y3F3dw==) **Booking is mandatory!** To ensure your participation in the class, it is mandatory to book a spot in advance. Please **visit the studio's website to book the class:** [BOOK HERE!](https://www.thevibedance.ch) *Rates?* 💃 **Single Class: CHF 29** **Special offer for NEW students: Starter Pack (2-Class) for CHF 35** *When?* **WEDNESDAY** 20:30 \- 21:30 \| Advanced Street Dance Class *Where?* **The Vibe Dance Studio** Hohlstrasse 488 8048 Zürich \~3 min from Altstetten Train Station and 15 min from HB *More info:* Website [thevibedance.ch](https://www.thevibedance.ch) Instagram [@nat.so.fun ](https://www.instagram.com/nat.so.fun/)and [@thevibedance.ch](https://www.instagram.com/thevibedance.ch?utm_source=ig_web_button_share_sheet&igsh=ZDNlZDc0MzIxNw==) **Have a question? Contact us via DM on [Insta](thevibedance.ch), give us a call or text us!** +41 78 329 71 77 **See you on the dance floor!**

Welcome to the Open Level Play Session. This session takes place every Saturday from 12:15 to 13:45 at the Yonex Badminton Hall Hardbrücke. The number of players on the waitlist one week in advance determines the number of courts booked. If you are on the waitlist but can no longer attend, please remove yourself as early as possible. Open to players of all skill levels. This session is for doubles with a relaxed and social focus. Ideal for casual play, improvement and meeting new players. Payment can be made via TWINT after the session.

Welcome to the Open Level Play Session. This session takes place every Saturday from 10:45 to 12:15 at the Yonex Badminton Hall Hardbrücke. The number of players on the waitlist one week in advance determines the number of courts booked. If you are on the waitlist but can no longer attend, please remove yourself as early as possible. Open to players of all skill levels. This session is for doubles with a relaxed and social focus. Ideal for casual play, improvement and meeting new players. Payment can be made via TWINT after the session.

Be open for change and come into your full potential! Get unstuck with Kundalini Yoga, Pranayam and Meditation and learn the tools to explore your inner riches. Let go of mental trash, find courage and lightness, and bring a sparkling joyfulness into your everyday-life as you gradually connect with your innermost sensitive being. You will leave this class energetically re-charged, with a calm mind, your spirits lifted and a soothed heart. Looking forward to see you! Sat Nam and blessings of grace, Nava No previous knowledge required. This class is for anyone interested in kundalini yoga and meditation, newcomers and seasoned practitioners alike. Regular class: 35.- / 10-class multiple: 320.- (valid 4 months) Students / Unemployed / Kulturlegi: 25.- / 10-class multiple: 225.- (valid 4 months) Visit also: www.yoga2be.ch // Meetup: Yoga2Be - Movement, Energy, Nutrition for Body & Mind http://meetu.ps/c/3DljJ/8Hl5s/a

Welcome to the Competitive Play Session. This session takes place every Saturday from 10:45 to 12:15 at the Yonex Badminton Hall Hardbrücke. The number of players on the waitlist one week in advance determines the number of courts booked. If you are on the waitlist but can no longer attend, please remove yourself as early as possible. Players are accepted into the session based on skill suitability. This session is for experienced players looking for quality games. Play is focused on doubles with a competitive mindset and consistent rallies. You should be comfortable smashing, return smashes and keeping up a moderate tempo throughout the session. New players and those who are new to badminton are welcome to join the PM Session (Open Level Play). Payment can be made via TWINT after the session.

Web Zurich presents inspiring talks all about the web. Join us for the Mai 2026 meetup! We will have three talks as well as chit-chat and drinks. Whatapp: [https://chat.whatsapp.com/FxOfVTK9nf431xHtVl3eGK](https://chat.whatsapp.com/FxOfVTK9nf431xHtVl3eGK) Website: [https://webzurich.ch](https://webzurich.ch) 18:30 \~ 19:00 Arrival time with drinks, chat 19:00 \~ 19:10 Welcome and introduction 19:10 \~ 19:30 *Alex Suzuki* **Monetizing JavaScript: Building Profitable Products as a Solo Developer** Lessons learned from building and launching a commercial JavaScript library as a solo developer. 19:30 \~ 19:50 *Hugo Sousa* **Ten times tea** I'm building a programming language. When I got to the frontend, I ran into a problem: React's mental model is elegant, but the mental model is at odds with the code. Hooks, effects, and render passes create a runtime that bears little resemblance to the code we write. The Elm programming language works differently and its architecture (TEA = The Elm Architecture) has been adopted by other tools over the years. So I copied it as well. My language embeds TEA at the language level, not as a library. This unlocks time-travel debugging, reproducible application state and serializable bug reports that include the entire program state. This talk covers the quick introduction of my language, TEA, why TEA is the right fit and what becomes possible when the architecture is baked into the language itself. 19:50 \~ 20:10 *Marco Gähler* **Software testing** Many old software projects don't have any tests - if the code works, why should you bother with tests? Well, you really should bother, because code changes all the time. During development, you keep adding new features which at times requires large scale modifications of the code that will inevitably alter existing functionality. And in existing projects, one still has to make updates once in a while, for example for security patches. These things will always break existing functionality and tests are the only remedy against this issue. In this talk, we will look at the basic idea of tests, how to implement them, what issues to look out for and how you can test pretty much any piece of code if your code base is well structured. 20:10 onward More drinks & chat We look forward to see you there! Location https://zurich.impacthub.ch/space/bogen_d/ Viaduktstrasse 93, 8005 Zürich, Switzerland Visit our website https://webzurich.ch/ for more information about the Web Zurich community. This event is supported by Impact Hub Zürich, The global community of entrepreneurial people prototyping the future of business. At Impact Hub, you can connect, collaborate, co-work and create great content in an inspiring environment.

We are currently playing in a regular group of 12 players at higher intermediate/advanced level. Your registrations here will first be on the waiting list and when confirmed, payment is to be made by twint to secure your spot for participation. There is a charge of Chf 22 per person. That is inclusive of feather shuttles. Place of event - Schumacher Sport Center, Am Stadtrand 46, Dübendorf. Court no. 10, 11 & 12

If your morning starts with a homemade coffee… why drink it from a mug you randomly bought? 😉☕️ Join our ceramic workshop and create the coffee mug you’ll actually be excited to wake up to. And if you’re feeling extra brunch-coded, make a matching plate for your croissant moment. 🥐✨ **📍 Location:** Schaffhauserstrasse 272, 8057 Zurich **🗓 Date & Time:** May 31st (Sunday), 10h-12h **⏱ Duration:** 2 hours **💰 Price:** 65 CHF per participant **What You’ll Learn:** * Step-by-step guidance to create your own mug * Decorating and painting your pieces with your own personal style * Beginner-friendly techniques — no experience needed!‍ **What’s Included:** * All clay, paint, and working tools provided * Kiln firing and glaze to make your piece food safe and ready to use **All levels welcome** — from complete beginners to clay pros. Looking for what to do in Zurich on Sunday? Join us! ✨ Your future morning self will thank you! 📧 Email us at [ceramicsonwheels@gmail.com](mailto:ceramicsonwheels@gmail.com) if you have any questions!

**Latest Dojo Location!** **Knotty Pine Brewing** 1765 W 3rd Ave, Columbus, OH 43212 We're going to try a new dojo location for a few weeks and see how it works Dojos are informal Python group study sessions where everyone interested in Python gathers to learn about Python, help others with Python, or just hang out. Everyone is welcome from Python beginners to experts. Bringing a laptop is encouraged (we'll have extension cords and power strips). If there's something you want to learn leave a comment on this invite so we can plan ahead. We're looking for speakers for our Monthly Meetups! Fill out the form if you are interested in presenting to the Python Community. https://forms.gle/ehSfUAC2WgR34Crq9

WQC has weekly Thursday night social nights at the Westerville Java Central. Come and grab a coffee and connect with the community: low stakes, chill environment, and tasty drinks. No registration is required; come as you are.

Come out to Improving for our monthly iOS and Mac meetings. This Month's Presentation: Nothing yet. (You should volunteer). What is Cocoaheads (http://cocoaheads.org/)? CocoaHeads is a group devoted to discussion of Apple Computer's Cocoa Framework for programming on MacOS X and iOS (including the iPhone, iPad and Apple Watch). During monthly meetings, members present on their projects and offer tutorials on various programming topics. What is BuckeyeCocoa (http://buckeyecocoa.org/)? BuckeyeCocoa is a group of Objective-C/Swift developers/enthusiasts. We host monthly Cocoaheads and near-weekly NSCoder meetings in Columbus, Ohio. The meetings are free to attend. Presentations! Presenters welcome! We are always in need of people willing to present material. Any Swift and/or Objective-C related topic is welcome. Times can be 5 minutes (i.e. lightning talks) to a maximum of 2 hours. Interested? Contact info is on the BuckeyeCocoa website. To volunteer for a presentation contact us at @BuckeyeCocoa on Twitter. Follow us on Twitter! @BuckeyeCocoa (https://twitter.com/#!/Buckeyecocoa/) For more information: http://buckeyecocoa.org/

**Important time note:** Please plan on arriving between 5:30 and 6:00 as the elevators lock after 6 and you'll need to message us and we'll need to come get you. The building address is 4450 Bridge Park The entrance is 6620 Mooney St, Suite 400 You will need to scan your ID at the door to get a visitor badge. **Abstract** Like it or not, AI agents are now capable of turning a quickly written paragraph of requirements into a pull request that is ready to be integrated into real-world production applications and it's now our responsibility to make sure AI doesn't go rogue and take down prod - or corrupt our data by misunderstanding the requirements or our existing schemas. In this session we'll explore strategies to protect our codebases through unit and integration testing, documentation, and code review along with additional ways of providing context and guard rails to our AI agents as they carry out the work we've assigned them to do. By the time we're done, you'll have a firm grasp of the problem and understand some helpful options for protecting your codebase from vibe coding mishaps getting YOLOed into prod. **YouTube Link** https://youtube.com/live/BltmWMH1zG0?feature=share

Model Context Protocol (MCP) is emerging as a standard way for AI models to securely interact with external tools and systems. This session provides a practical deep dive into MCP architecture, core concepts, and real-world integration patterns. We will explore how MCP enables structured tool calling, improves interoperability, and simplifies AI integration in existing applications. The talk will include examples of connecting AI models with APIs, databases, and enterprise systems, with a focus on how developers can adopt MCP in Java-based environments. **Note**: This is a hybrid in-person/online event. Food and social for those in the OCI training room starts at 6:00pm. Presentation starts at 6:30pm for those online and in the training room.

**✅ Bachata Mondays with Todd Smith!** **👉 Beginner Bachata Class** **$15 In Advance / $20 At the Door** 7:00 pm – 7:15 pm … Registration 7:15 pm – 8:15 pm … Beginner Class **👉 Intermediate Bachata Class** **= $15 In Advance / $20 At the Door** 8:15 pm – 8:30 pm Registration 8:30 pm – 9:30 pm Intermediate Class **👉 If You Take Both Bachata Classes** **= $25 In Advance / $35 At the Door** **👉 Buy Advance Tickets Now at:** https://columbussalsadancing.com/bachata-mondays-dance-class-tickets/